A = int(input())
for i in range(8):
  if A < 400 + (i+1)*200:
    print(8-i)
    break
  else:
    continue
 A = int(input()) A int(input()) int input() input for i in range(8):
  if A < 400 + (i+1)*200:
    print(8-i)
    break
  else:
    continue i range(8) range 8 if A < 400 + (i+1)*200:
    print(8-i)
    break
  else:
    continue A < 400 + (i+1)*200 A 400 + (i+1)*200 400 (i+1)*200 i+1 i 1 200 print(8-i) print 8-i 8 i break continue A = int(input()) int(input()) A
A = int(input())
for i in range(8):
  if A < 400 + (i+1)*200:
    print(8-i)
    break
  else:
    continue

